The thalloid body of a slime mould (Myxomycetes) is known as:
1. protonema
2. Plasmodium
3. fruiting body
4. mycelium
Evolutionary history of an organism is known as:
1. Phylogeny
2. Ancestry
3. Palaeontology
4. Ontogeny
Which of the following statements is incorrect?
1. | Yeasts have filamentous bodies with long thread-like hyphae. |
2. | Morels and truffles are edible delicacies. |
3. | Claviceps is a source of many alkaloids and LSD. |
4. | Conidia are produced exogenously and ascospores endogenously. |
Match the Column-I with Column-II
Column-I |
Column-II |
||
(a) |
Saprophyte |
(i) |
Symbiotic association of fungi with plant roots |
(b) |
Parasite |
(ii) |
Decomposition of dead organic materials |
(c) |
Lichens |
(iii) |
Living on living plants or animals |
(d) |
Mycorrhiza |
(iv) |
Symbiotic association of algae and fungi |
Choose the correct answer from the options given below:
Options: | (a) | (b) | (c) | (d) |
1. | (ii) | (iii) | (iv) | (i) |
2. | (i) | (ii) | (iii) | (iv) |
3. | (iii) | (ii) | (i) | (iv) |
4. | (ii) | (i) | (iii) | (iv) |
Which of the following statements is incorrect?
1. | Prions consist of abnormally folded proteins |
2. | Viroids lack a protein coat |
3. | Viruses are obligate parasites |
4. | Infective constituent in viruses is the protein coat |
Assertion: Diatomaceous earth is used in polishing, filtration of oil and syrups.
Reason: Diatomaceous earth is gritty due to presence of silica.
Which of the following is an incorrect statement
regarding fungi?
1. Wheat rust causing agent is Puccinia.
2. Penicillium is a source of antibiotic.
3. The cell walls of fungi are composed of
peptidoglycans.
4. Fungi prefer to grow in warm and humid places.
The motile bacteria are able to move by:
1. fimbriae
2. flagella
3. cilia
4. pili
A location with luxuriant growth of lichens on the trees indicates that the:
1. Trees are very healthy
2. Trees are heavily infested
3. Location is highly polluted
4. Location is not polluted
The guts of a cow and a buffalo possess:
1. Fucus sp
2. Chlorella sp
3. methanogens
4. cyanobacteria